{
  "about": {
    "trial": false,
    "author": {
      "name": "EMQ",
      "email": "contact@emqx.io",
      "company": "EMQ Technologies Co., Ltd",
      "website": "https://www.emqx.io"
    },
    "helpUrl": {
      "en_US": "https://github.com/lf-edge/ekuiper/blob/master/docs/en_US/sqls/query_language_elements.md",
      "zh_CN": "https://github.com/lf-edge/ekuiper/blob/master/docs/zh_CN/sqls/query_language_elements.md"
    },
    "description": {
      "en_US": "An operation to filter out rows based on a filter condition.",
      "zh_CN": "用于过滤数据流的操作"
    }
  },
  "properties": [{
    "name": "expr",
    "default": "",
    "optional": false,
    "control": "text",
    "type": "string",
    "hint": {
      "en_US": "filter condition expression",
      "zh_CN": "过滤条件语句"
    },
    "label": {
      "en_US": "Condition",
      "zh_CN": "条件"
    }
  }],
  "node": {
    "display": true,
    "category": "op",
    "input": {
      "type": "any",
      "rowType": "any",
      "collectionType": "any"
    },
    "output": {
      "type": "same",
      "strategy": "keep"
    },
    "icon": "iconPath",
    "label": {
      "en": "Filter",
      "zh": "过滤"
    }
  }
}